A Yellow Bolus.
Take Rhubarb (not toasted, but grated fine) from 1 scruple to 2; Oil of Cinnamon 1 drop; Diascodium sufficient to make it up.
Its a most efficacious Remedy in a Diarrhea, to be given (if the Diarrhea be not much) at Night, otherwise early in the Morning, and may be repeated according as the case shall require.
See the compound Infusion of Rhubarb.
Thomas Fuller
Pharmacopeia Extemporanea 1710